" 14."{(cos70^(@))/(sin20^(@))+(cos55^(@)cosec35^(@))/(tan5^(@)tan25^(@)tan45^(@)tan65^(@)tan85^(@))}

Evaluate : ( 1 ) cosec (65° +theta) -sec (25° - theta) - tan (55° + theta) + cot (35° - theta) (2) (3cos55^(@))/(7sin35^(@))-(4(cos70^(@)cosec20^(@)))/(7(tan5^(@)tan25^(@)tan45^(@)tan65^(@)tan85^(@)))

Find tan15^(@).tan25^(@).tan45^(@).tan65^(@).tan75^(@) .

Evaluate :(3cos55^(0))/(7sin35^(@))-(4(cos70^(0)cos ec20^(0))/(7(tan5^(0)tan25^(0)tan45^(@)tan65^(@)tan85^(@)))

Evaluate the ((3 cos 43^(@))/(sin 47^(@)))^(2) - (cos 37^(@) "cosec" 53^(@))/(tan 5^(@) tan 25^(@) tan 45^(@) tan 65^(@) tan 85^(@))

Evaluate: tan5^(@)tan25^(@)tan30^(@)tan65^(@)tan85^(@)

Value of tan25^(@)tan35^(@)tan45^(@)tan55^(@)tan65^(@) is

Evaluate: tan35^(@)tan40^(@)tan45^(0)tan50^(@)tan55^(@)

(sin18^(0))/(cos72^(0))+(sin22^(0))/(cos68^(@))-(cos38^(0)cos ec52^(0))/(tan18^(@)tan35^(@)tan60^(@)tan72^(@)tan55^(@))

(cos20^(@)-sin20^(@))/(cos20^(@)+sin20^(@))=tan25^(@)